It was decided that during the RS project, prototyping will be used to gain knowledge and reduce uncertainty. Explain (i) how and (ii) during what stage of a system development project, would prototyping be useful as a means of reducing the following uncertainties:

3.2 Healthy Food is considering implementing a telephone system using the system development features supplied by Microsoft Access. They are not sure whether it can provide the kind of interface that would be needed and are also concerned about the possible response times of a system developed using Microsoft Access. Explain (i) how, with a made-up Healthy Food example (3 marks) and (ii) during what stage of a system development project (2 marks), would prototyping be useful as a means of reducing this uncertainty. (5 marks)